OB004
Animal-mediated Carbon Pathways: The Role of Metazoans in the Biological Carbon Pump

Session ID#: 253800

Session Description:
The biological carbon pump transports carbon from the ocean’s surface to the depths, playing a critical role in the Earth’s climate regulation. Traditionally, biological carbon pump research primarily focused on microbial activity and the passive flux of sinking particles. However, emerging evidence underscores the significant yet often overlooked role of metazoans in the biological carbon pump. These organisms contribute to the pump through a variety of pathways, including vertical migrations, fecal pellet production, and the sinking of carcasses. Despite their importance, substantial uncertainties remain regarding the magnitude of their contributions to the biological pump.

This session invites contributions that explore the role of metazoans in the biological carbon pump. We welcome studies on zooplankton, fish, gelatinous organisms, and other metazoan taxa, with a particular focus on reducing uncertainty in current estimates of the export and sequestration mediated by specific pathways and/or taxonomic groups. We encourage submissions employing diverse methodologies—ranging from field observations and laboratory experiments to advanced numerical modeling. While much of the existing research has focused on carbon export, we are particularly interested in studies that quantify carbon sequestration, particularly those that couple carbon export and injection estimates with global ocean circulation models to evaluate long-term carbon storage.

Co-Sponsor(s):
  • Carbon Management -
  • Climate and Ocean Change -
  • Marine Ecology and Biodiversity -
Index Terms:

4227 Diurnal, seasonal, and annual cycles [OCEANOGRAPHY: BIOLOGICAL]
4806 Carbon cycling [OCEANOGRAPHY: BIOLOGICAL]
4830 Higher trophic levels [OCEANOGRAPHY: BIOLOGICAL]
4890 Zooplankton [OCEANOGRAPHY: BIOLOGICAL]
Primary Chair:  Jérôme Pinti, PhD, Gulf of Maine Research Institute, Portland, United States
Co-chairs:  Emma Cavan, Imperial College London, London, United Kingdom, Andre W Visser, Technical University of Denmark, National Institute of Aquatic Resources, Copenhagen, Denmark and Sigrun Jonasdottir, DTU National Institute for Aquatic Resources, Copenhagen, Denmark
 
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